From 63fc81541e90bc4256a2caacb8338ecd7e5edf79 Mon Sep 17 00:00:00 2001
From: Jakob Stoklund Olesen <jolesen@mozilla.com>
Date: Fri, 4 Nov 2016 08:44:01 -0700
Subject: [PATCH] Add Cursor::set_position.

Make it possible to move a cursor to a new position.

In the current implementation of Layout and Cursor, this is a trivial
operation, but if we switch to a B-tree based function layout, this
involves navigating the tree.
---
 lib/cretonne/src/ir/layout.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/cretonne/src/ir/layout.rs b/lib/cretonne/src/ir/layout.rs
index fdd2305747..bdcf4cdd52 100644
--- a/lib/cretonne/src/ir/layout.rs
+++ b/lib/cretonne/src/ir/layout.rs
@@ -381,6 +381,11 @@ impl<'f> Cursor<'f> {
         self.pos
     }
 
+    /// Move the cursor to a new position.
+    pub fn set_position(&mut self, pos: CursorPosition) {
+        self.pos = pos;
+    }
+
     /// Get the EBB corresponding to the current position.
     pub fn current_ebb(&self) -> Option<Ebb> {
         use self::CursorPosition::*;